Deer heart blood should refer to deer blood, deer blood has the effect of nourishing blood and benefiting essence, stopping bleeding and stopping leucorrhea, deer blood mainly treats soreness of tendons and bones, edema and so on. Deer blood belongs to the blood tonic medicine in the deficiency medicine, deer blood is the blood of deer family animal sika deer or horse deer. Deer blood into the liver meridian, kidney meridian. Deer blood is sweet, salty and warm. Deer blood has the effect of nourishing blood and benefiting essence, stopping bleeding and stopping leucorrhea. Deer blood can treat impotence and spermatorrhea, deficiency of essence and blood, lung phlegm and vomiting of blood, lumbago, palpitation (rapid heartbeat, often accompanied by panic), epistaxis (nosebleed), insomnia, metrorrhagia (excessive menstruation or dripping) and leucorrhea. Side effects of Deer Blood include allergic reactions such as pimples and measles in those who are allergic to Deer Blood. Deer blood is contraindicated for those with a history of allergy to deer blood. If necessary, please use it under the guidance of a professional Chinese medicine practitioner, not self-medication.